CTC-140A - B & B Instruments, Inc.
Contents
1. temperature Temperature ranges CTC 140A 17 to 140 C 1 to 284 F CTC 320A 33 to 320 C 91 to 608 F CTC 320B 33 to 320 C 91 to 608 F CTC 650A 33 to 650 C 91 to 1202 F CTC 650B 33 to 650 C 91 to 1202 F CTC 1200 A 300 to 1205 C 572 to 2200 F Fast calibration is timesaving The specially designed heating block profile heats up to 320 C 608 F in just 4 minutes and to 650 C 1202 F in only 10 minutes High flexibility You are not limited by fixed holes Inter changeable insertion tubes are used to match the diameter of your sensor under test Enhanced stability MVI circuitry ensures stability despite mains supply variations in the process environment Timesaving features Fast one key one function access to the automatic switch test and auto stepping Documentation made easy RS232 communication and JOFRACAL calibration software are included in the standard delivery Complete marine program Part of a complete program of marine approved temperature pressure and signal calibrators including temperature sensors See more at www jofra com ISO 9001 Manufacturer Specification Sheet SS CP 2281 US JOF RA CTC series Compact Temperature Calibrators Fast timesaving and reliable true temperature calibrator A fast timesaving and reliable true temperature calibrator designed for on site use The CTC series is a fast dry block that offers both interchangeable inserts the MVI stabili2. 105196 124507 Undrilled inserts tomm oo 105187 100185 105188 105192 105197 124508 CTC 1200 A imm om 123431 100188 100204 105193 105198 124509 2mm o2 129432 100186 100206 105194 105199 124510 4mm S 3mm 013 129433 GOFS39 105189 123454 128462 N A amm o4 NA 100190 100208 123455 128468 N A 5mm os NA 100191 100209 123456 123464 NA 6 mm Memm os wa 2949 123446 1294 123460 wa 7 smm os NA 123440 122517 128458 129466 NA X Multi hole type 1 CTC 140 A Package of the 124679 124681 124685 124683 124687 124689 above inserts 3 16 in Multi holetype 1 MO 128479 123475 123476 Spare part no for predrilled inserts imperial inch a um CTC 140A CTC 320A CTC 650 A CTC 320 B CTC 650B CTC 1200A wm s coro ove 1095 corse swa see Multhole type 2 CTC 140 A uam 250 ore 100160 10099 toros exem 312404 i nem s2 ores oie 100200 tora exam 12513 Dmm so orae 100169 100207 eors70 sorasa 12405 nsnm sez oram ore oras orsa eee NA ssm 625 orae 0 2 100210 ors exam NA 6 mm i Multi hole type 1 Hanem ss na eors some 1051 cora NA CTC 320 A 650 A wm 4 mm 60F354 60F418 60F377 60F446 package onthe 124680 124682 1246
3. A outer diameter 25 7 mm 1 01 in CTC 320 CTC 650 A inner diameter 21 5 mm 0 85 in CTC 320 CTC 650 A lenght 120 mm 47 in CTC 320 CTC 650 B outer diameter 25 7 mm 1 01 in CTC 320 CTC 650 B inner diameter 21 5 mm 0 85 in CTC 320 CTC 650 B lenght 200 mm 7 9 in CTC 1200 A outer diameter 25 mm 0 98 in CTC 1200 A inner diameter 22 mm 1 6 in OTC 1200 A lenght eee ene 155 mm 6 1 in Weight of non drilled insert approximate OTOA M 75 g 2 6 oz IEE 208 E re eet E E E 170 g 5 8 oz aieo s 0D T 510 g 17 8 oz GIperccalc MT 280 g 9 8 oz arpecolcolc MTM TESTS 860 g 30 3 oz BILEET o E 460 g 16 3 oz Shipping including optional carrying case GTO TU T 12 5 kg 27 6 Ib PILET TE 11 kg 24 Ib OTO O50 A MMRMCR 12 kg 27 Ib Muyecc c 13 5 kg 21 Ib STIS 0l qe E 17 kg 37 Ib OF ee 18 kg 39 Ib Size L x W xH 507 x 232 x 415 mm 19 9 x 9 1 x 16 3 in Shipping without carrying case CTOSTAU Jssesetebdesttimubines oslo creticattoRaseaen sen nteseaed 10 kg 22 Ib CTC 320 8 kg 17 5 Ib ape cc o 9 5 kg 21 Ib A Size L x W x H 465 x 255 x 470 mm 18 3 x 10 0 x 18 5
4. an innovative heating block profile This design heats up the CTC 320 A to maximum temperature in just 4 minutes and the CTC 650 A in only 10 minutes The fast performance of the heating block is due to the special profile that minimizes mass and yet still accepts an insertion tube with a 25 mm 1 in outer diameter This design is a balanced compromise between temperature stability homogeneity and rapid heating cooling Deep immersion depth The CTC 320 B and CTC 650 B models offer a deeper immer sion depth of 200 mm 7 9 in If you have liquid filled sensors or other sensors that require a deeper immersion depth look for the B versions While the units do not heat and cool as quickly as their shorter counterparts they offer the capability to accom modate longer sensors Peltier effect CTC 140 A The model CTC 140 A features Peltier elements In 1834 Jean Peltier a French physicist found that an oppo site thermocouple effect could be observed when an elec tric current was connected to a thermocouple Heat would be absorbed at one of the junctions and discharged at the other junction This effect is called the PELTIER EFFECT The practical Peltier element electronic heating pump consists of many elements of semiconductor material connected elec trically in series and thermally in parallel These thermoelectric elements and their electrical interconnections are mounted between two ceramic plates The plates s
5. in SILOS AN PEET mene eee en me EUM NE EU 11 kg 24 Ib adqrdcocolcc KE 14 kg 26 Ib ex eh T 15 kg 32 Ib B Size L x W xH 465 x 255 x 470 mm 18 3 x 10 0 x 18 5 in Shipping carrying case only OU em T 5 0 kg 11 Ib Size L x W xH 507 x 232 x 415 mm 19 9 x 9 1 x 16 3 in Specification Sheet SS CP 2281 US Inserts for CTC 140 A and CTC 320 A B are made of aluminum Inserts for CTC 650 A B are made of brass Inserts for CTC 1200 A are made of high temperature steel alloy All specifications on hole sizes are referring to the outer diameter of the sensor under test The correct clearance size is applied in all predrilled inserts Undrilled inserts Inserts undrilled CTC 140 A inserts 0 CTC 140 A CTC 320 A CTC 650 A CTC 320 B CTC 650 B CTC 1200 A z pace unanig 60F448 100175 100194 60F356 60F420 124403 Undrilled 4 mulation plug 123997 see below Spare part no for predrilled inserts metric mm Undrilled inserts Lo Msmumets 1 CTC 320 650 A B Probe diameter CTC 140A CTC 320A CTC 650 A CTC 320 B CTC 650B CTC 1200A 003 129428 vemm 004 6oF451 100177 100196 60F359 60F423 124406 5mm 005 1294290 129487 128445 123452 123460 124504 emm oo 60r453 100179 100198 60F36 GoF425 124407 8mm 008 105185 100182 100201 105190 105195 124506 9mm 009 105186 100183 100202 105191
6. time before Sofie bee putida E stable indication is shown Display NSSONUUNG Ie ogce feet scennccaseseeeccacsdeevenieiedeesece 0d or 1 C F Temperature units sees C or F Slope FANG S 0 1 to 9 9 minute Maximum temperature Any value within range Miscellaneous Serial data interface HS232 9 pin Male Operating temperature 0 to 40 C 32 to 104 F Storage temperature 20 to 50 C 4 to 122 F mui n O to 90 RH Protection CIES Morc IP 10 DNV Marine Approval Certificate no A 9557 tus k E E S f Instrument dimensions CTC 140 A CTC 320 A CTC 650A LXW x Hi Lies 241 x 139 x 325 mm 9 5 x 5 5 x 12 8 in CTC 320 B CTC 650 B CTC 1200 A LXxW xH 241 x 139 x 408 mm 9 5 x 5 5 x 16 1 in Instrument weight CIC H 4O0AJCIC 920 BB irccseccwwicccencnarecssneaseunaccess 7 kg 15 5 Ib PILO SNE EE EE EAE EEN EE N E 5 kg 11 Ib 41 72 00 MEER 6 kg 13 Ib gupec ossi M 10 5 kg 23 Ib aire p To 12 kg 26 5 Ib Insert dimensions CTC 140A outer diameter 19 1 mm 0 75 in CTC 140A inner diameter 15 0 mm 0 59 in CTC 140A lenght eese 100 mm 3 9 in CTC 320 CTC 650
7. 0 A go cosco cated coceceucetenaeedcceannctocns 0 1 C 0 18 F CTC 650 x 0 05 C 0 09 F Measured after the stability indicator has been on for 10 minutes Measuring time is 30 minutes Time to stability approximate CMG HAO 5 minutes CTG 320 650 A B sccecccctccestcsemedecucsvetednestac acuceuwantdes 8 minutes CGI ZOO T era 20 minutes Accuracy eg 50D 0 4 C O 7 F CTG 320 A B iieieiiseetec teres E pex ete rc cRcPKERORES x 0 5 C 0 9 F CG GO p V 0 9 C 1 62 F CTC 650 B eeseeese mmm enne nemen enis 0 6 C 1 08 F 20 D 2 0 C 3 6 F Specification when using the internal reference Load 4 mm OD refe rence probe in the center of the insert Immersion depth CTC 140 A insulation included 115 mm 4 5in CTC 320 A CTC 650A CTC 1200 A 110 mm 4 3 in CTC 320 B CTC 650 B eene nn 190 mm 7 5 in Well diameter CTCO 140 ER 19 2 mm 0 76 in CTG 3207 CTGC D50 iaces edem pesci recom EC Erw vrEcE 26 mm 1 0 in gie T 27 mm 1 6 in Specification Sheet SS CP 2281 US Heating time CTC 140 A A7 O23 6 130 7 Sateen eue Dues ME UE 3 minutes 23510 MO C 7 T9 t0 284 Feci eps ceci a eaii 15 minutes CTC 320 A 2910 320 C 73 tO DOUG F 4iieeocesiseptoicndioit sno te obice ido cieskin 4 minutes CTC 650 A 23 to 650 C 7 73 to 1202 F v
8. 86 124684 124688 124690 above inserts 123480 3 123477 123478 3 8 in Multi hole type 2 Note 1 Use the insert code when ordered as the standard insert together with a new calibrator 1 8 in Note 2 CTC 140 A only Remember to use matching insulation plugs see accessories 3 16 in Note 3 CTC 140 A only All multi hole inserts are delivered with a matching insulation plug 1 4 in Note 4 CTC 1200 A only Remember to order matching insulation plugs see accessories Multi hole type 2 CTC 320 A 650 A A Order number CTC140A CTC320A CTC650A CTC320B CTC650B CTC1200A Description Base model number CTC 140 A 17 to 140 C 1 to 284 F CTC 320 A 33 to 320 C 91 to 608 F CTC 650 A 33 to 650 C 91 to 1202 F CTC 320 B 33 to 320 C 91 to 608 F CTC 650 B 33 to 650 C 91 to 1202 F CTC 1200 A 300 to 1205 C 572 to 2200 F 115 230 Power supply US deliveries 60 Hz only 115VAC 230VAC gonmuoou Mains power cable type European 230 V USA CANADA 115 V UK 240 V South Africa 220 V Italy 220 V Australia 240 V Denmark 230 V Switzerland 220 V Israel 230 V XXX Insert type and size 1 x Insert for dry block configuration please see the previous insert pages for the right insert codes Calibration certificate NLP Traceable temperature certificate standard for Europe Asia Australia and Africa NIST traceable temperature certificate standard for Western H
9. Y FEATURES Specification Sheet SS CP 2281 US PHYSICAL SPECIFICATIONS Automatic switch test Finds switching temp Open close hysteresis Slope rate programmable 0 1 to 9 9 C F Auto stepping mie ripe t Up to 9 steps Dwell time on each step Programmable Enhanced stability Unstable mains protection MVI Circuitry Clear stability indication Yes in display Multi information display Stability andi ALON os coucecoi treo orien Lone od er iencres Bold checkmark Countdown timer before stable 4 minutes Temperature SET and READ simultaneously Alphanumeric messages eeeeeeeeeeeeereeeeee Yes Calibration status ICONS reete rene terit oan Rue pases Yes Training mode heating cooling block disabled Simulation of all functions eem Yes Simulating heating and cooling Approx 100 per minute Service facilities Adjustment of the unit from the keypad Yes Self explaining guide in display Yes Other information Displays serial number software revision level and last calibration date Setup facilities Stability Che lel eisiston Extra
10. d air Use the cleaning brushes to clean the borings in your inserts when necessary Insulation tube and plates 65 F100 105173 Improve your calibration uncer tainty by insulating the sensor under test Minimize the heat dissipation from the top of the block and through the sensor under test This insulation is important for all dry block calibrators without the dual zone heating block Specification Sheet ACCESSORIES O O O O O O OOO Part no 122832 60F174 122822 123469 124528 124414 124415 124416 124518 124519 124520 SS CP 2281 US Description Cleaning brush 4 mm 3 Pkg Cleaning brush 6 mm 3 Pkg Cleaning brush 8 mm 3 Pkg Insulation plug kit for CTC 140 A only 3 pcs Reference sensor 04 5 mm x 500 mm type N for CTC 1200 A Insulation plug kit for CTC 1200 A 3 pcs 12 mm in Insulation plug kit for CTC 1200 A 3 pcs 3 and 4 mm 1 8 in Insulation plug kit for CTC 1200 A 3 pcs 5 and 6 mm 1 4 and 3 16 in Insulation plug kit for CTC 1200 A 3 pcs 7 8 and 9 mm 5 16 in Insulation plug kit for CTC 1200 A 3 pcs 10 and 11 mm 3 8 and 7 16 in Suspension holder for sensors for CTC 1200 A Carrying case Option C The optional protective carrying case ensures safe transportation and storage of the instrument and all associated equipment Heat shield 104216 An external heat shield is availa ble and may be placed on top of the calibrator to r
11. educe the hot air stream around the sensor under test This is especially important for testing thermocouples having head mounted transmitters with cold junction compensation FUNCTIONAL SPECIFICATIONS Mains specifications Voltage CTC 140 320 650 1200 115V 90 127 230V 180 254 Voltage CTC 650 B 115V 105 127 230V 210 254 Frequency non US deliveries 50 Hz x5 60 Hz x5 Frequency US deliveries 60 Hz x5 Power consumption max CTC 140 A 150 VA Power consumption max CTC 320 B 600 VA Power consumption max CTC 1200 A 650 VA Power consumption max CTC 320 A 650 A B 1150 VA Temperature range CTC 140 A Pe EN ORT T TET 140 C 284 F Minimum ambient temp 0 C 32 F 30 C 22 F Minimum ambient temp 23 C 78 F 17 C 1 F Minimum ambient temp 40 C 104 F 2 C 28 F CTC 320 AB wrreiiettecemienaccicd 33 to 320 C 91 to 608 F CTC 650 AJ B eee 33 to 650 C 91 to 1202 F CTC 1200 A 300 to 1205 C 572 to 2200 F Resolution user selectable Selectable M n 1 or 0 1 C F Stability eec A 0 05 C 0 09 F CTC 320 A B eessseeseseeeenenn nennen 0 1 C 0 18 F CTC 650 A7 120
12. eiswiccwniweticvonmseandeoserbnasaund 10 minutes CTC 320 B 2910 32D C 73 TO DO F eerren aui 20 minutes CTC 650 B 23 t0 650 C 7 73 10 1202 P ioscesnsctsdetenteeo uates tudo nsi 39 minutes CTC 1200 A 2910 1205 7 73 to 2200 F sccatintaiccasntdvtnscarionioepeniens 45 minutes Cooling time CTC 140 A 100 to 0 C 7 212 to 32 F a iesecesusc eet esae puse drSeck oen beas 10 minutes 010 215 C 7 92 10 DP Lees sectae pesce e visu reap Por utes gesOEes 16 minutes 14010 100 C 7284 to 212 E Lis esissec eese Gerona orto idev ad ten tc 2 minutes CTC 320 A 320 to 100 C 608 to 212 FP ioco etna epe oth rn bn eis 16 minutes CTC 650 A 650 to 100 C 1202 to 212 F e 28 minutes CTC 320 B 920 to 100 C 608 to 212 F Lscessoessoscusostuseste Sota inen 22 minutes CTC 650 B 650 to 100 C 7 1202 to 212 F annene 65 minutes CTC 1200 A 1205 to 300 C 2200 to 572 F eec 120 minutes Switch input dry contact JR Maximum 5 VDC Test CULTO ote lere u tutos ue Spo ERE Ense rasis Maximum 2 5 mA JOFRACAL software Minimum hardware requirements for JOFRACAL calibration software e INTEL 486 processor PENTIUM 800 MHz recommended e 32 MB RAM 64 MB recommended e 80 MB free disk space on hard disk prior to installation e Standard VGA 800 x 600 16 colors compatible screen 1024 x 786 256 colors recommended e CD ROM drive for installation of the program e 1 free RS232 serial port KE
13. emisphere Accredited certificate with 5 std points except CTC 1200 A Accredited certificate with 4 std points for CTC 1200 A C X Options Carrying case No option used CTC650A230AMO1FX AMETEK CALIBRATION INSTRUMENTS Headquarter AMETEK Denmark A S Sample order number JOFRA CTC 650 A dry block 230 VAC power with European power cord and insert Pre drilled multi hole type 1 1 x 3 mm 1x4 mm 1x5 mm 1x6 mm 1 x 9 mm and NLP traceable certificate Sales Europe and the Middle East Gydevang 32 34 3450 Aller d Denmark Tel 45 4816 8000 ametek ametek dk www ametekcalibration com www jofra com Information within this document is subject to change without notice 2005 by AMETEK Inc www ametek com All rights reserved Pub code SS CP 2281 US Issue 0610 AMETEK Calibration Instruments offers a complete range of calibration equipment for temperature pressure and signal including calibration software JOFRA Temperature Calibrators Portable precision thermometer Dry block and liquid bath calibrators 4 series with more than 20 models featuring speed portability accuracy and advanced documenting functions with JOFRACAL temperature calibration software JOFRA Pressure Calibrators Convenient electronic systems ranging from 1 to 700 bar 25 inHg to 10 000 psi multiple choices of pressure ranges pumps and accuracies fully temperature compensated for p
14. erve to mechanically hold the overall structure together and to electrically insulate the individual elements from one another Maximum temperature From the setup menu the user can select the maximum tem perature limit for the calibrator This function prevents damage to the sensor under test caused by the application of excessive temperatures The feature also aids in reducing drift resulting from extended periods of exposures to high temperatures This feature can be locked with an access code Specification Sheet SS CP 2281 US MVI Improved temperature stability MVI stands for Mains power Variance Immunity Unstable mains power supplies are a major contributor to on site calibration inaccuracies Traditional temperature calibrators often become unstable in production environments where large electrical motors heating elements and other devices are perio dically cycled on or off The cycling of supply power can cause the temperature regulator to perform inconsistently leading to both inaccurate readings and unstable temperatures The CTC series employ the MVI thus avoiding such stability problems The MVI circuitry continuously monitors the supply voltage and ensures a constant energy flow to the heating elements Easy to use intuitive operation All instrument controls may be performed from the front panel The heat source is positioned away from the panel This design helps to protect the operator The main func
15. manpower The operator may stay in the control room or another remote location monitoring the output from the sensor under test while the ITC series calibrator is placed in the process and automatically changes the tempera ture using a programmed step value and rate Up to 9 different temperature steps may be programmed including the hold time for each step AMETEK Re calibration adjustments The CTC series has a very easy and straightforward procedure for re calibration adjustment There is no need for a screwdriver or PC software The only thing you need is a reliable reference thermometer Place the probe in the calibrator and follow the instructions on the display Third party labs and calibration facilities will be able to perform this function if a certificate from an independent source is necessary Of course AMETEK can provide you with a traceable calibration certificate from our labs when you require a higher level of confidence Liquid filled sensors and switches The tall B models with an immersion depth of 190 mm 7 5 in are ideal for calibration of liquid filled sensors The specially designed non linear heating ele ments in the CTC 650 B and the increased block mass provide a very homogeneous temperature throughout the block It is essen tial for the quality of the calibra tion test that the full lenght of the sensing part of the sensor is exposed to the same temperature Calibrate analog reading devices o
16. ore about JOFRACAL calibration software in specification sheet SS CP 2510 which can be found at www jofra com Calibration of up to 24 sensors with JOFRA ASM Using the JOFRA ITC series together with the ASM Advanced Signal Multi scanner offers a great time saving automatic solution to calibrate multiple temperature sensors at the same time The ASM series is an eight channel scanner controlled by JOF RACAL software on a PC Up to 3 ASM units can be stacked to calibrate up to 24 sensors at the same time It can handle sig nals from 2 3 and 4 wire RTD s TC s transmitters ther misters tempera ture switches and voltage Please also see more in specifica tion sheet SS CP 2360 which can be found at www jofra com STANDARD DELIVERY CTC dry block calibrator user specified Mains power cable user specified Traceable certificate temperature performance Insert user specified Tool for insertion tubes User manual Reference manual English Test cables 1 x red 1 x black RS232 cable 9 pin JOFRACAL calibration software CTC 140A only Matching insulation plug kit 3 pcs CTC 1200 A only Matching Insulation plug kit 3 pcs Inserts heat shield and cleaning brushes Always use the original inserts where material and physical dimensions have been optimized A drilling guide is included if you buy undrilled inserts The heat shield protects the sensor transmitter under test from the heate
17. r switches with very high repeat ability Specification Sheet SS CP 2281 US Simplified calibration documentation JOFRACAL All CTC series calibrators are provided with the JOFRACAL cali bration software This software allows the user to customize his or her calibration routines The software is easy to use so you do not have to be a programmer to configure your own calibration procedures The software features prompts menus and help functions that guide you through the configuration process SSS SS ar he ooo i aic e ft Eimi E The JOFRACAL calibration software supports automatic calibration for all JOFRA dry block calibrators equipped with an RS232 serial data interface including the JOFRA DTIO50 digital thermometer the JOFRA DTI 1000 digital ther mometer and the JOFRA ASM Multi scanner For semi automatic calibrations the software also supports liquid baths ice points or other dry block heating and cooling sources Using the software s SCENAHIO function allows for combining instruments in virtually any configuration Once all calibrations are completed the data may be uploaded to the JOFRACAL calibration software for post processing and printing of certificates The calibration data collected may be stored on the personal computer for later recall or analysis The JOFRACAL temperature calibration software may be donw loaded from our web page www jofra com Please also see m
18. roblem free and accurate field use JOFRA Signal Calibrators Process signal measurement and simulation for easy control loop calibration and measurement tasks from handheld field instruments for multi or single signals to laboratory reference level bench top instruments JOFRA JF Marine Calibrators A complete range of calibration equipment for temperature pressure and signal approved for marine use FP Temperature Sensors A complete range of temperature sensors for industrial and marine use Decause calibration is a matter of confidence AMETEK Calibration Instruments is one of the world s leading manufacturers and developers of calibration instruments for temperature pressure and process signals as well as for temperature sensors both from a commercial and a technological point of view Sales offices AMETEK T amp CI Americas Sales The Americas Tel 1 518 689 0222 e jofra info ametek com AMETEK Singapore Pte Ltd Sales Asia Tel 65 6 484 2388 aspl ametek com sg AMETEK Inc Beijing Rep Office Sales China only Tel 86 10 8526 2111 jofra ametek com cn AMETEK GmbH Sales Germany only Tel 49 2159 91360 info ametek de AMETEK Lloyd Instruments Sales UK only Tel 44 0 1489 486 404 jofra ametek co uk
19. tions on the CTC series are designed with one key one function logic This means that there are no sub menus or difficult to remember multiple keystrokes necessary to access primary functions The easy to read backlit display features dedicated icons which help in identifying instrument conditions and operational steps METEK Ee Set temperature The Up and Down arrow keys allow the user to set the exact temperature desired with a resolution of 0 1 Instrument setups The CTC series stores the complete instrument setup including engineering units stability criteria resolution display contrast slope ramp rate auto step settings and maximum temperature Stability indicator A bold checkmark on the display indicates that the calibrator has reached the desired set temperature and is stable The operator may change the stability criteria and establish a greater sense of security in the calibration results A convenient countdown timer is activated five minutes before the unit reaches stability Automatic switch test Operators can save a lot of time using the automatic ther moswitch test function to find values for the Open and Close temperatures Additionally this feature displays the hysteresis deadband between the two points The feature ensures a very high repeatability when testing thermoswitches Simply press the SWITCH TEST key to activate the function Auto stepping This feature saves
20. ty circuitry and calibration software Both speed and portability are superior to liquid baths Dry block calibrators do not require hazardous liquids and provide a wide temperature range Calibrate your RTD s thermocouples thermoswitches thermistors and other common temperature sensing devices e a T WT ALL PRODUCT DESCRIPTION The CTC series is designed for both on site and maintenance shop use The applications are generally critical process control but can vary based on calibration and testing requirements The user interface is easy and intuitive One key one function gives you quick access to timesaving features such as the switch test or the auto stepping function All models feature a large backlit LCD display panel which is easy to read even in well lit areas Units feature an informative display that provides icons and information regarding the status of the CTC and the calibration in progress The JOFRA CTC series consists of six different models that differ in temperature ranges and immersion depths All units offer similar features A rugged slim line alu minum outer casing with die cast top and bottom protects the CTC series of dry block calibrators For easy documentation and automatic calibration all units are delivered with RS232 serial communication and JOFRACAL calibration software AMETEK CALIBRATION INSTRUMENTS Fast heating and cooling The CTC 320 A and the CTC 650 A contain
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